Disk plow.



Patented Oct. 29, T912.

DISK PLOW.

:1. v/ rs r l A if.: I Il f .........S-

J. H, DAVIS 6: J. W. MORGAN.

g W/ y? Y ."fvmrn, n (nm i 'f ifa" m-mirnijvrfvn onlin?? sienes Us JOHN H. DAVIS, 01T' OAKLAND, TGI-IN XV. MORGAN, OFELMHURSI, CALFORNA.

DISK PLW.

it?, l Siefwaton f lettl'slatent Patentcdetmlrlila Application filed Marelli 2S, 1912. Serial No. 686,863.

laitered so as to adapt the disk to different e5 conditions and ditlerent kinds ot soils. EX- perience shows that diterent. conditions and kinds ot soils require diii'erent angles or adjustments ot the disks, and in practice we have found that this eccentric bushing pro- 5t,

To (all vwhom it may conce/m Be it known that We, Jol-IN H. Davis, ot @aki-and, Alameda. county, State oi' Calitornio and Jorrit YV. MORGAN, of Elmhurst,

a Alameda county, State of California, both citizens ot tlie United States, have invented new and' useful Improvements in Disk Ploivs, et which the following is a. specilication.

@ur inventioi. relates cultivators, and pertains especially7 'to an eccentric bustling or boxing -for the purpose of changing the angle of the disk,

Tlie invention consists of the parts and tlie construction and combination oit parts, li erinafter more fully described and claimed, having reference to the accompanying drawings, in Wliicl 1 Figure i is a side elevation partly in section. 2 is a c oss section on line X-X, Eig. l.

A represents t-lie traine et a disk plow or cultivetor, having; the arms or brackets 2 carrying the disks 3.

The invention. resides in the use of a bushing or boxing' 4 in Wliicli the spindle or arbor 5 of the disk is onrnaled eccentrically. uEre'ferably this boxing or bushing et is in the form-of a truncated cone itting in a corresponding` seat in the end of the bracket 2 and adapted to be held securely1 in place by suitaole means, as the seti-screw (i.y The end of tlie bushing toward the disk 3 lias an annular a'nge 'g' forming aslioulder, loeliind which the brackets 8 on the disk engage and liold the disk in revoluble and secure position.

The essential feature of this invention is the journaling' of the disk eccentricelly in t-lie bushing and tbe making of the bushing circnmiierent'ially adjustable so that by turning the bushing, more or less in one direction.

r the other, the angle or" the disk either horizontally, vertically or otherwise may be to disk plows and vides :i simple and ready means for adapt-` inetliedisks to all these varying conditions.

in order to securely bold-the bushing inplace, We prefer to form little pockets 9 at,

regular inte vals around the bushing in the' path of tl'ie pointed set-screw 6 for the end oi the set-screw to seat in; lliese pockets or indentations 9 being spoed to certain predetermined angular adjustments oi the disk.

Having tlius described our invention, what We claim and desire to secure. by Letters Patent, is-H ln disk'plow in combination, a, disk, an arbor attached to said disk and adapted, to

form a journal for tlie disk, a conoidal busli-v ing forming a. journal bearing` for said ar-A bor, said bushing being termed of a substantiallyY smootli exterior surface the axis of Which is eccentric with et the bearing for said arbor, a support adapted to form a seat in which said busliing is rotalively mounted for the purpose of adjustment, and a set screw passing through said supiluortand adapted to contact-With -said brushingto clamp the same in a direc# tion substantially coincident with the direction ofpressure when vsz id disk is in normal operation.

set our hands in the presence ozt tWo subscribing Witnesses.

JOHN H. DAVS. JHN Vil. MGRGAN.

i/Vit'nesses J. Howe fa/ERSTER, G2-no. L. loLr.

spaced to correreference vto the axis .70

ln. testimony,Y Wliereot we have hereunto 

